Implemented the insert and save functionality
A lot of work on the copy&paste functionality
Fixed the insertion to avoid PrimaryKey error
Write functionality
Added matplotlib functionality
Quit functionality
Added rudimental error reporting at saving time
Added a menu item to enter an empty vulnerability model
Address some issues raised in https://github.com/gem/qt-experiments/pull/7
Merge pull request #7 from gem/insert-save

Work on the input tool for the vulnerability functions